Signs that your crush likes or loves you may include: frequent communication, compliments, body language cues such as mirroring your actions or leaning in, making time to spend with you, remembering details about you, and showing genuine interest in your life. It's important to communicate openly and directly with your crush to understand their true feelings.
Usually they will give looks a lot and either really shy or loves to talk to u.
To know if your crush likes you when you are alone with her, observe to see if she will make any contact.
Ask him!
You should go for it if you know that person likes you go for it no holding back.
No your ugly.
Ask Him.
http://www.wikihow.com/Know-if-a-Guy-Likes-You
He might like u and he wants to be with you and he just doesnt want u to know that he loves or likes u don't worry u will be ok
by the way your crush acts and looks around your friend
depends on if you know he likes you or not
Having a crush basicly means u love them
get with another lad to try and make your crush jealous if it doesn't work then he likes someone else or get a friend to ask him if he likes someone and if he does tell your friend to ask him who he likes. if he doesn't like you then move on you can find somebody better then him, somebody that actually loves you.